半刚性基层材料动态特性研究  

Study on Dynamic Characteristics of Semi-rigid Base Layer

作　　者：郭大进[1] 黑鹏[1] 韩立志[1] 

机构地区：[1]交通部公路科学研究所,北京100088

出　　处：《公路交通科技》2005年第12期42-45,61,共5页Journal of Highway and Transportation Research and Development

摘　　要：在交通荷载的作用下,路面材料的性质都与现行的静态力学体系有着较大的差距。本文对影响动态模量的各种试验因素进行了分析、整理,初步确定了室内动态参数试验的试验力学参数、试样制备要求、数据采集和分析等试验方法和分析程序。针对目前国内最常见的路面基层材料———水泥稳定碎石,进行了不同级配、不同剂量条件下大量的室内试验,在此基础上建立了半刚性路面材料动态参数与抗压强度、荷载水平的关系式,探索了动静态参数之间的关系。Under traffic load, the stress and strain in the pavement are recycling very fast, which is much different from what happened when the pavement material tested following the commonly used static procedure. In this paper, the influence factors are discussed one by one. Then, the dynamic test force, the specimen preparation procedure, data input and analysis are recommended. Portland cement stabilized macadam is most used material for base layer of pavement. For different gradation and binder quantity, serial tests were conducted in terms of strength, dynamic modulus and static modulus. The statistical relationship between strength and dynamic modulus, dy- namic modulus and static modulus were analyzed.

关 键 词：路面 动态参数 水泥稳定碎石 回归关系 

分 类 号：U414[交通运输工程—道路与铁道工程]